Floor surfacing machine



April 1940. R. F. KNEISLEY ET AL .198.876

FLOOR SURFACING MACHINE Filed May 20, 1958 2 Sheets-Sheet 1 Chic: 21 M 4 April 0- w R. F. KNEISLEY ET AL 8376 FLOOR SURFACING MACHINE Fil ed May 20, 1938 2 SheetsSheet 2 F EEJQ Patented Apr. 30, 1940 I I a r to RijsU G MAC INE V '7 Richard F-.1Kneisley?and RobertiE.Wolfe, Toledmg :33: ;Ohio, assignors to The American Floor Surfacn: M chin C m To d Oh awn porationt LOhi Q I f I A plies wil y 20, 1938QQ$etialNol2095083:

This invention ielates to floor 'sur facijng niai frame topsubs'tantially centrally thexfeo f, as ere-'- chines,an d rhore particularly to'those'ofthe sandinaTfitler liaescr be dT j u S x: u s hpd bo dy fi p m fl th i ven i t dfrarhesection-3disposed inreclining pos1t1onw th vision of a-machineb'f this charaot'n which has its-lcgs tr nsv r ly. spa ed m aho1g3 n a1 p an '6 its frame or'ienclosing casing so[constructed as and; forming l 1.,Q j'the iifimg,bQ y to simplify and cheapen the costotjmanufacwith itsloop i9onti n;. p s d a andfform ng'the ture, also to enable the frame paftsftfo be easily rear closed end of such body asbestshown in and qnickly assembledsand fto permit easy. and F153,] f 'aine SECtlO 'flj lS preferably made I 10 rapid. monntingflof the working parts of. the Horn he'avyf sheet metaI or b 'oad ban-stool; to 10 machine in theframe,fwherebyto enhance the v itflstren h' nsi' mg dlty, and hasbearmgsoranticabilityrand,commercial value thereof. f I inthetop edge.po tionsofrits si fi f P r m Ajfurtheilobject'of theinv'ention i sjto provide tr nnions-l ofj n l n gmot'or 5, th haft of a compact, shallow machine of this character wh ch is horizontally disposed and nro ects bewith" the operating parts, including the 'motoi, ytll l l tl e' s fi 's he f nzn wheze; t carr s i? 15 sandorum and dust collecting-"means" mounted p p e lf i n a e sa n e f therein, oneback' of another; andjentir'ely en h i y raps I closed by the frame housing. f I Thejrear end ithe-housing l sformed above {A further object of the invention is the rovi-j h f a on 3 hy a 'rsanend member, which sion ofv an improved dust collecting rjn'e tns' for' igati 0&1 imit-edge of ilheilogoted lpovrtll ondgi 20 m hines of this character, whereb' du'st may-be 1 an erv i 1 S 0 e e in'zfoduced' up into a' reoeptacle a d istnb it d. wi a f s t; ng jwhi h't ts n i secn d unifoi'mly over its bottom, which ispreferablv'of' t0 Sald 0OD'pOi i nPY i Qr WSfi; Themember B considerable'area', and which recjeptacle mayjhe Q P {b'%i f;? v1dod with iorward y it easily and quickly removed'from'the machine' e nd ng t nndt q p rt onswh thtgtm e forf'the 'purp'os'eoi cleaning without any a cci-l agtga ilrjfo tlllghgfionandbhavz ain lgiwiagglly dental loss ofdust thert-ifrom. l. Q's? jm m B ".t 7 Otherdobjectsand advantages of the invention structlO hbe g pr b' y t ting, and has will be apparentwfrom the fon win netanedde, h h diq i ta hcd t t n t e present n-c scrintion-and from "the" accompanying drawings; ant a m r n $9 P r .;Wh h

vFigure 1 is a side elevation of a inachine em j' B P Ye n be les p0 n. 9 h W ym F P 959 .Y P -f W parts" end sin suitable bearings l'l in the ffr'arnelegs. 35 broken away, Fig. 3\1sa.perspect1ve view of the H v. v 1

hine with the removable hood and front .clo-v z v Pf-s i h shaft p l fi W 3? r m :33: melnber of the housing removed fromgthe and'carrlesa pulley l8 in driven COIIDBCtIQH 'WIth Y the motor pulley B througha belt IS. The drum mac'hme frame m perppect-we F 5 rdiec l yf619W.F iI W g o the the removable hood and; front end closure mern frat-meal 7 v v t V I V 1 40' 40 separatgfr-o'm mtghmeimg "Thefanhieans 20 of the diistcollecting-system the 11116 Flgf w fun? isdis'pdsedintermediate the-motor '5 and sandand Fig. 6 is an enlarged'detailed se ctlon'on the mg drmms -v therlegsof th frame in mg ber sfpemg suitabiy supported therein, asj'by'at 5 Referring to ;t he';dra w1ngs, l designates ta hin' fits housing ;to such legsand 'to'the motor housing of a machlne including the mventlon, housing fanhOuSm-g customary vsuch housingibeing' of comparatively shallow boxv. dustinlet muithiz'fd i g djac t to the-lower form and having a substantiallvflat top which rear portioniofthejsandmg drumzag wen:under s t siv r. substantially Withthev stoodin the art, and-has' the upwardly extendin 5' 1 zontal cross-sectional area' of the machine and outl ttn k lltamiflgtiiflgiin ub t whi h h s depending i en m g a top p'lane'of the hoodsectiohBflThzfan has' its' protecting skirt around the m i wo'rkins parts. shaft extending through one leg portion or side Thenflat? top. of :the housing provides a'srestfor of thetfran-ieiandis driven by'a be1t=23 connectthe"dust'2co11ecting bagx2giwhich has :reniovable ing a pulley 24 hereon with a pulley on'the dru connectionwiththe'dnsft fan-conduit through' the shaft,-iis; 7 m

The rear end of the frame member 2 is supported by a caster attached to a flange 26 at the inner side of the loop portion of saidframe, and the frame is supported in advance thereof at substantially its center by a pair of vertically adjustable wheels 21 carried by the'arms of a yoke 28 mounted on a cross-shaft 29, as well understood in the art. The 'yoke' 28 has a rearwardly extending arm 30 connected by a rod 3| to a control lever 32 on the handle II, whereby the engagement of the sanding drum with the surface being sanded may be controlled.

The top of the housing I is closed in advance of the rear hood section 8 by a top hood section 35 of inverted U-form in vertical cross-section, which seats at its side edges on the top edges of the le portions of the body frame 3,and at its rear edge fits over and is secured to the lip.

flange ID of the hood section 8 by screws 36. The side edges of the hood section 35 areprovided with inwardly offset downwardly projecting legs 31 for engaging the inner top side edges of the frame 3.

The front end of the housing I is closed by a front section. 40, which has its side and top edges inwardly extended to seat against the front ends of the body frame 3 and top hood section 35. The section is hinged at its top edge to the front end of the hood section, as shown at 4| .(Fig. 4) to facilitate access to the drum l5 when changing the sanding paper thereon. The hood section 35 is provided near its forward end with a handle 42 and has an opening 43 for registering with and receiving the upper open end of the fan housing outlet neck 22.

The dust bag2hasarather large bottom portion for resting on the top of the hood section 35 and is provided through its bottom with an inlet tube 45 to which the bag mouth is closely clamped, as by a band 46. The tube 45 has its lower end projecting a short distance below the bag and in suitable position to register with and be fitted intothe outlet neck 22 of the fanhousing. The tube extends a distance up into the bag and is provided with a dust deflecting disk 41 in upwardly spaced relation to the tube end, so that the dischargingdust -is .directed laterally in all directions, from the tube and deposited uniformly in the bottom of the bag around the tube. The projecting of the tube 45 up into the bag is an important feature, as it enables the operator, in removing a bag, to grasp the top portion of the tube through the intermediate upper collapsed portion of the bag and to withdraw the tube from the neck 22without spilling any of the dust from the bag through the inlet-opening. One end of the bag is preferablyprovided with a zippered opening (not shown)v to facilitate dumping of its,

contents.

The pulleys and belts which connect the motor to the drum and fan means are disposed without one side of the machine housing and are enclosed and protected by a guard which, in the present instance, comprises threesections a, b and c. The section a is attached to the hood section 8; the section b is attached to the hood section 35 and extends outwardly and downwardly from a side edge thereof in skirt form, and the section 0 is attached to the front end section 40.

It is apparent that the present invention provides a housing structure for a floor surfacing machine, which housing is of simple, compact and shallow form and encloses as well as supports all of the operative parts of the machine in convenient arrangement and has portions thereof easily and quickly removable to render access to.

the operating parts; also that in this machine the motor sets low at the rear of the other operating parts and is enclosed within the housing; also that with such arrangement of operating parts it is possible to have a shallow form of housing with a substantially broad flat top on which the dust collecting bag alone may be mounted.

We wish it understood that our invention is not limited to any specific construction, arrangement or form of the parts, as it is capable of numerous modifications and changes without departing from the spirit of the claims.

Having thus described our invention, what we claim as new and desire to secure by United States Letters Patent is:

. 1.'In a machine of the class described, an open bottom housing comprising a U body frame with its open end forward and carrying the operating parts of the machine, a rear hood section fixedly mounted on the rear closed end of said frame and forming .a rigid frame structure therewith, a top hood section of inverted U-form in cross-section removably mounted on the leg portions of said body frame and cooperating with the rear hood section. to close the top of the body frame, and a front section movably attached to the front end of said top section and adapted to close the same and the front end of the body frame.

2. In a machine of the class described, an open bottom housing comprising a U body frame of shallow form and formed of plate or bar stock with its 'open end forward andits legs horizontally spaced, said frame having the operating parts of the machine mounted therein, a top hood portion substantially U-form in cross-section mounted on saidvframe with its legs seating on the top edges ofthe respective legs of said frame, said hood portion cooperating with said frame to close the rear end of the housing and having its forward end open, and a forward housing section attached to the forward end of said hood and adapted to close its forward end and that ofthe frame.

3. In a machine'of the class described, a shallow U body frame with its open end forward and its legs horizontally spaced a sanding drum disposed between the forward ends .of the frame, with its shaft transverse to and journaled in the legs, an electric motor disposed in the rear end portion of the frame between its legs with its shaft transverse thereto, the motor housing being mounted intheframe between its legs, dust collecting fan means mounted in the frame between said drum and motor with a dust receiving mouth adjacent to said drum and an upwardly directed outlet, means for driving the drum'and fan from the motor, a hood mounted on said frame and cooperating therewith to form, a substantially fiat top casing closed at sides, top and rear, and a separate casing part closing the front end of said casing and movable to render access tothe front of the drum.

4. In a machine of the class described, a shallow U body frame disposed in horizontal position wits its open end forward and-its leg portions forming the frame sides, a sanding drum, a dust collecting fan means and a motor supported by and mounted between the legs of said frame one back of another, means mounted on and forming a shallow cover over said frame and forming a substantially flat top surface over themajor portion of theframe and units mounted therein and having an opening through such top in communication with said means, and a dust receiving receptacle resting at its bottom on said top 7 in surrounding relation to said opening and having dust receiving communication with the open ing.

5. In a machine of the class described, a shallow housing open at its under side and having a substantially flat top of considerable area with a dust delivery opening therethrough, a sanding drum, a dust collecting fan means and a motor mounted in said housing below said top, means cooperating with said drum to support said housing, and a dust receiving bag having a bottom of considerable area resting on said housing top around said opening, said bag having communication through its bottom with said opening.

6. In a machine of the class described, a shallow housing open at its under side and having a substantially fiat top of considerable area'with a dust delivery opening therethrough, a sanding drum, a dust collecting fan means and a motor mounted in said housing below said top, means cooperating with said drum to support said housing, and a dust receiving bag having a bottom of considerable area resting on said housing top around said opening, and a tube releasably joined at its lower end to said opening and extending a distance up into the bag with its upper end opening therein.

7. In a machine of the class described, a shallow housing open at its under side and having a top which is substantially flat through the horizontal area of the housing and having an opening therethrough adjacent to its center, a sanding drum, a dust collecting fan means and a motor mounted in said housing with the fan means near the center of the frame and outlet in communication with said opening, a dust bag having a broad bottom for resting on said top in surrounding relation to said opening and having a dust delivery tube projecting upward therein and connected at its lower end to said opening.

8. In a machine of the class described, a shallow housing open at its bottom and having a substantially flat top of considerable area with an opening therethrough in spaced relation to the side edges of the top, a sanding drum and dust collecting fan means mounted within said housing, a motor carried by the frame for driving said drum and means, and a dust receiving bag having a broad bottom portion resting flat on said top in surrounding relation to said opening and having inlet communication through its bottom with said opening.

9. A floor surfacing or like machine, including a housing composed of a base and a cover, said base being of substantially U-form in top plan view, and having a member at its rear end for connection with a handle, the legs of the base being of less height than that of the height of the housing and being adapted to support the operating parts of the machine so as to locate the center of gravity close to the surface on which the machine operates, the cover being of substantially U-shape in cross-section and engaged with the member at the rear end of the latter, and a front member movably connected to the cover to close the front end of the latter and the free ends of the legs of the base.

10. A floor surfacing or like machine in ac cordanoe with claim 9 wherein the member at the rear of the base has a top, a closed rear end, and closed sides, and with its front end open, and wherein the cover has the rear end thereof, engaging the top and side portions of the memher, and wherein the movable front member has a top hingedly connected to the top of the cover and has sides engaging the front ends of the sides of the cover.

RICHARD F. KFN'EISLEY. ROBERT E. WOLFE. 

